| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-16448 | N/A | Impurity | |
| Fesoterodine Impurity 8 | ||||
| C4X-16449 | N/A | Impurity | |
| Fesoterodine Impurity 9 | ||||
 | C4X-16451 | 103335-55-3 | Impurity | |
| Finasteride Impurity 1 | ||||
| C4X-164510 | 154387-62-9 | Impurity | |
| Finasteride Impurity 10 | ||||
| C4X-164511 | N/A | Impurity | |
| Finasteride Impurity 11 | ||||
| C4X-164512 | N/A | Impurity | |
| Finasteride Impurity 12 | ||||
| C4X-164513 | N/A | Impurity | |
| Finasteride Impurity 13 | ||||
 | C4X-164514 | 302-97-6 | Impurity | |
| Finasteride Impurity 14 | ||||
 | C4X-164515 | 140375-21-9 | Impurity | |
| Finasteride Impurity 15 | ||||
| C4X-164516 | N/A | Impurity | |
| Finasteride Impurity 16 | ||||
